Side by side

Tudor Black Bay One 31 S&GvsLongines MASTER COLLECTION

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $3,000

At a glance

20 of 29 specs differ
Diameter
Black Bay One 31 S&G31mm
MASTER COLLECTION42mm
Power Reserve
Black Bay One 31 S&G50h
MASTER COLLECTION72h
Water Resistance
Black Bay One 31 S&G100m
MASTER COLLECTION30m
MSRP
Black Bay One 31 S&G$6,850
MASTER COLLECTION$3,000

Full specifications

Case

7 specs
Diameter
31mm
42mm
Thickness
9.5mm
10.8mm
Lug-to-Lug
46mm
49.7mm
Lug Width
17mm
21mm
Finish
Polished + Satin
Water Resistance
100m
30m
Caseback
Solid screw-down
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
MT5201
L897.2
Beat Rate
28,800 vph
25,200 vph
Power Reserve
50h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, month and date by annual calendar

Pricing

1 specs
MSRP
$6,850
$3,000

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G is praised for its quiet luxury, combining brushed steel and warm gold accents for understated charm. Owners appreciate the brushed gold for a casual two-tone look and the champagne dial's surprising legibility. Some find the case sides too thick, and one user expressed a desire for a smaller S&G variant. The watch features the MT5612 movement with a 70-hour power reserve and a date function, within a 200-meter water-resistant case. Overall, owners and reviewers highlight the Tudor Black Bay One 31 S&G's balanced two-tone aesthetic as its primary appeal.

Longines MASTER COLLECTION

The Longines Master Collection is widely praised for its excellent value, beautiful dial execution featuring engraved Breguet numerals and snailed subdials, and classic, vintage styling. Owners and reviewers highlight its dressy and thin profile, with one owner noting its versatility as a daily wear. The Master Collection offers complications like chronographs and moon phases at competitive price points, with some finding the case finishing homogenous and the pushers to feel cheap. Accuracy figures are not consistently reported across sources, but one owner notes a broken moon phase setting mechanism requiring professional service. Water resistance is considered light at 30m, and the bracelet lacks micro-adjustments. Overall, owners and reviewers rate the Longines Master Collection highly for its dial execution and value, particularly when purchased below retail.

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